Color

#545bab

#545bab
hex#545bab
rgbrgb(84, 91, 171)
hslhsl(235, 34%, 50%)
oklchoklch(0.505 0.126 277.1)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1231

Colors that go with #545bab

Charcoal, Sea Green and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#aba454

#5487ab · #7854ab

#ab545b · #5bab54

Split-complementary

Open in tool →

#ab7854 · #87ab54

#ab5487 · #aba454 · #54ab78

Contrast

#545bab as textRatioAAAA largeAAAFix
Aaon white
6.07:1passpassfail
  • AAA: use #4c529a as the text (7.05:1)
Aaon black
3.46:1failpassfail
  • AA: use #696fb5 as the text (4.54:1)
  • AAA: use #8e93c7 as the text (7.15:1)
  • AA: or shift the background to #dedede (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #545bab as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #545bab
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #545bab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/545bab-9e9cc4-df8d4e-241f2d-e9eef1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md